Scheduled maintenance for OS level updates takes place on a fixed Sunday of each month on each Board Cloud instance (unless otherwise communicated by Board). Details of the schedules can be found here.
Currently, details of this window are not displayed to administrator users anywhere within the platform which can often catch people out when scheduling jobs to invoke procedures.
It could be useful to display confirmation of the time and day of the month the planned maintenance takes place on that specific instance to prevent admins from scheduling jobs that may clash with that window.
The 'scheduler' screen in the admin console could be a good place to display this.